Replace Key Fob Batteries

How to Open Your 2008 Audi A5 Key Fob and Change Battery

How to Open Your 2008 Audi A5 Key Fob and Change Battery

If your Audi key is not working perfectly, the cell battery most likely needs to be replaced. Below, we walks you through how to open your car keyless entry remote and replace your Audi key battery step by step.

What kind of battery remote key fob require

Changing battery in remote key fob require 1 CR2032 battery and flat head screwdriver. Prepare these materials and tools before opening and make sure to match the type of your fob’s batteries.
  • flat head screwdriver
  • 1xCR2032 battery

Step by step instruction

A tiny coin cell battery installed inside the your keyless entry remote. Open the key if it is in the remote key fob.

Gently try to open your key fob with hands or flat head screwdriver. Replace CR2032 battery with flat head screwdriver.

Now it's time to install new battery in keyless entry fob's case. Every battery has a negative and positive side and if you put the wrong connector down, the charge cannot go into your circuit board and make it work. Check position on battery, by "+" mark.

After the new battery installed, check remote key fob by pressing buttons. If everything is functioning, assemble your fob’s shell in reverse order.

At this point squeeze keyless entry fob's back cover together. Line your case two halves together and put it together by hands from top to bottom. Inspect your remote key fob shell for gaps. If it is not firmly closed try to repeat last step.

How to replace the battery video instruction

How to change SmartKey Key fob Battery on Audi A5 A3 A4 S4 S5 S6 Q5 Keyless entry IYZFBSB802

Still not working? Buy new one

FAQ

Key fob of Audi A5 use 1xCR2032 batteries. Price for CR2032 batteries are under $5 depending on the type, size packaging and brand you buy. Take your old battery to the store, to be sure.

Remote key fob in most of cases do not need to be reprogrammed after battery replace. If your remote key fob not working, recheck new battery voltage. Otherwise, read user's manual or contact local dealer.

Yes, you can change battery in your 2008 Audi A5 key yourself. Most difficult part is to disassembly fob’s case. It's pretty easy with our step by step guide.

Dealer service cost for replace the battery in keyless entry remote is from 50 to 600 dollars depending on the make.

Keyless entry remote batteries in Audi A5 should be changed once in 3-4 years, also this will vary based on frequency of use and quality. If your keyless entry remote decreased signal strength, you should replace batteries before it stop close doors and make problems for you.

If your car has low key battery indicator on dashboard, need multiple clicks to unlock or lock doors, fob's battery more than 4 years old or key fob buttons not working, in most cases battery change in keyless entry remote required. Current battery is weak with a high probability, but if it's not fix, remote key fob replace or repair required.
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Contents:

  1. Battery Size and Tools
  2. Replacement Guide
  3. Video Instruction
  4. FAQ

Other Audi Models:

Fob Compatibility:

  1. FCC ID: IYZFBSB802
  2. Models: 2008-2015 Audi A5